$OpenBSD: patch-platform_OpenBSD_sm_mem_c,v 1.1 2014/07/10 10:21:41 sthen Exp $
--- platform/OpenBSD/sm_mem.c.orig	Thu Jul 10 04:20:00 2014
+++ platform/OpenBSD/sm_mem.c	Thu Jul 10 04:20:54 2014
@@ -37,6 +37,7 @@
 #include <sys/param.h>
 #include <sys/sysctl.h>
 #include <sys/swap.h>
+#include <sys/vmmeter.h>
 
 #include <unistd.h>
 #include <stdlib.h>
